import {INCREMENTCOUNT,DECREMENTCOUNT} from '../constant/countConst'
const init ={
    count:0
}

export default function countReducer(prevState=init,action){
    const{
        type,
        data
    }=action

    switch(type){
        case INCREMENTCOUNT:
            return {
                ...init,count:prevState.count+data
            }
        
        case DECREMENTCOUNT:
            return {
                ...init,count:prevState.count-data
            }

    }

    return prevState
}